Sarsasapogenin 3-O-β-D-galactopyranosid synthesis
- Product Name:Sarsasapogenin 3-O-β-D-galactopyranosid
- CAS Number:68422-00-4
- Molecular formula:C33H54O8
- Molecular Weight:578.79
![Ethanamine, N-[(3,5-dichlorophenyl)methylene]-2,2-diethoxy-](/CAS/20210305/GIF/1000210-73-0.gif)
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Yield: 90%
Reaction Conditions:
with methanol;sodium methylate in dichloromethane at 20; for 3.5 h;
Steps:
5.c; 14.c
Step (c) [00240] To a stirred solution of 3,6-dibenzyolated timosaponin A I (100 mg, 0.127 mmol) in anhydrous CH2C12 : MeOH (2: 1, 21 mL) was added dropwise with NaOMe in MeOH (0.1 mL, 1.0 M) at room temperature to form a reaction mixture. After stirring for 3.5 hr, TLC (CH2Cl2:MeOH = 9: 1) indicated that all starting materials had been consumed. The reaction mixture was neutralized with Amberlite IR 120 (H+), filtered and concentrated. The crude product was subjected to column chromatography using CH2Cl2:MeOH (9: 1) to obtain Timosaponin A I (66 mg, yield 90%).
References:
CHE, Chiming;SY, Laiking;LOK, Chunnam WO2013/149580, 2013, A1 Location in patent:Paragraph 00240
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68422-00-4
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1000210-73-0
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68422-00-4
82 suppliers
inquiry